Yet, trump is their CIC, so they obey orders!!
https://www.newsweek.com/donald-trump-troops-border-mexican-nielsen-1397532
.......Yet, despite the Trump administrations repeated warnings of a security crisis at the southern border, the head of U.S. Northern Command, U.S. Air Force General Terrence O'Shaughnessy, told lawmakers in late February that while a secure border does reduce threats to the homeland, the situation at the border is not a military threat.
O'Shaughnessy said he could also see that any barrier in place to secure our nation does have some ramifications to our ability to defend against a military threat as well. But, he told lawmakers, right now, theres not a specific military force from the south that we are trying to take action against.
The same day the U.S. military documents were drafted last week, President Trump told reporters at a roundtable event in San Antonio, Texas, last Wednesday that he was going to have to call up more military in response to the recent surge in arrivals of asylum seekers at the southern border. The president also appeared to bemoan that military members could not get a little rough with asylum seekers.
Our military, don't forget, can't act like they would normally act because if they got a little rough, everybody would go crazy," Trump said, before appearing to blame horrible laws that the Democrats wont change for the militarys inability to exercise more force.